ByDr. Brennan Commerford, D.C.·Last reviewed: July 2026
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Magnesium (as Magnesium L-Threonate): verification pending

We’re confirming the science for this compound before we publish a form ranking. Our team reviews every ranked page against peer-reviewed absorption data — this one is still under review, so we are not showing a score yet.

Check back soon. Rankings are reviewed by Dr. Brennan Commerford, D.C.

References

  1. In a double-blind, placebo-controlled study of 109 healthy Chinese adults, a magnesium L-threonate (Magtein PS) based formula at 2 g/day for 30 days significantly improved memory and overall memory quotient scores versus placebo, with greater improvement in older participants. PubMed
  2. A 2026 randomized, double-blind, placebo-controlled trial found that six weeks of magnesium L-threonate supplementation improved overall cognitive performance and reaction time in adults with self-reported sleep dissatisfaction, compared to placebo. PubMed
  3. A 2024 randomized, double-blind, placebo-controlled trial found that adults with self-reported sleep problems who took magnesium L-threonate showed improved deep and REM sleep measures, along with better daytime mood, energy, and alertness, compared to placebo. PubMed

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.